Fun can come in all shapes and sizes and that's what makes the Roller Derby Cobra adjustable inline skates so cool for kids. This molded boot has a push button so you can adjust the Cobra for a more precise fit. To keep the feet and ankles comfortable the insides have comfort fit padding and locking in is made simple with the dual locking cam-lever buckle. Because kids can find themselves in the funniest places sometimes, Roller Derby took steps to use a reinforced Nylon frame.